Rubber internal-bath bag



Patented Dec. 22, 1925.

UNITED STATES ROBERT E. STERRITT, OF CRANSTON, RHODE ISLAND,

1,557,009 PATENT OFFICE..

ASSIGNOR T0 DAVOL RUBBER COMPANY, OF PROVIDENCE, RHODE ISLAND.

RUBBER INTERNAL-BATH BAG.

Application filed May 29, 1925. Serial No, 33,662.

nal-Bath Bags, of which the following is a specication.

This invention relates to certain new and useful improvements in rubber internal bath bags and pertains more especially to the valve and operating mechanism thereof for controlling the water flow.

The primary object of the invention is to provide a valve mechanism which instantly responds to pressure exerted by the user, and which operates with ease and certainty so as to assure full and instant flow ot' the water or other liquid.

A further object of the invention is tol provide improved means, for connecting the valve structure to the bag, which means is ot simple and compact construction, and is reliable in preventing leakage.

In the drawings Fig. 1 is a top plan view and Fig. 2 is a vertical sectional view of the valve mechanism.

In proceeding in accordance with the present invention, a metal ring 1 is provided which is molded in a wall of the bag B, in embedded relation thereto. The open center of the ring is surrounded by an eX- ternally threaded collar 2, having an inwardly bevelled upper seat or face 3. A sleeve 4C having both internal and external threads, is threaded over the collar 2 and threadedly receives a hollow valve casing 5 on its interior. The lower or inner end of the casing 5 has a chamfered edge 6 which conformably engages the seat 3 of the collar 2 with a ground lit. The upper Iend of the casing 5 is formed with a contracted neck 7 through which a tubular valve stem 8 slidably extends.

The lower or inner end of the stem 8 carries a conical valve 9 having a transverse port 10 which communicates with the hollow interior of the stem. The casing 5 has an upwardly tapered seat 11 which conformably receives the valve 9, the latter being norf mally held against the seat by a coil spring 12. The lower end of the valve 9 is reduced to form a boss 13 which receives and centers the upper end of the spring, while the lower cud of the spring seats on a ring 14 threaded into the interior of casing 5. The ring 14 has a tapered bottom which lits against the seat 3 with a grinding tit so as to additionally seal the structure against leakage.

A rubber nozzle 15 fits over the upper end of the valve stem 8 and has lateral discharge orifices its base.

An outer casing 18 is threaded over the collar 2 and the neck 7 of the valve casing 5 and its base tightly engaging the wall B ot the rubber bag to compress the wall and further render the structure leak-proof.

In operation, the nozzle is positioned as usual, and upon the user encountering and exerting downward pressure against the flange 17, the valve will be unseated, against the action ot the spring, permitting flow of the liquid past the valve. then through the port 10. into the valve stem. and from the latter into the nozzle and out of the orifices thereof. The valve is afforded a firm and effective anchorage of relatively considerable area to the wall ot the bag and due to the multiplicity ot sealed joints between the ring base and the juxtaposed parts cooperating therewith, a water-tight connection is provided.

Having thus described my invention. what I claim as new and desire to secure by Letters Patent is 1. A valve structure for rubber internal bath bags. including a ring base engaged with a wall of the bag and having an eX- ternally threaded collar at its center provided with a downwardly tapered seat on its upper face, a sleeve threaded over the collar, a valve casing threadedly received in the sleeve and having a tapered lower end conformably engaged with the tapered seat, said casing having a conical valve seat and a neck at its upper end, a tubular valve stem slidable in the neck and having a conical valve on its lower end to engage the valve seat, said valve having a. transverse port communicating with the interior of the valve stem, a nozzle on the valve stem, the lower end of the valve having a depending boss, a spring surrounding the boss at its upper end, a ring threaded within the casing and supporting the lower end of the spring, said ring having its lower end tapered to conformably engage on the seat of the collar, and an outer casing threaded 16 and a flange 17 adjacent over the Isleeve and engaged with. the wall Y of the bag to clamp the latter against the ring base.

2. A valve structure for rubber internal bath bags-` ineluding a ring base engaged with a wall of the bag and having an eX- ternally threaded collar at its center provided with a downwardly tapered seat on its upper face, a sleeve threaded over the collar, a valve casing threadedly received in the sleeve and having a tapered lower end conforinably engaged with the tapered seat, said casing having a conical valve seat, a tubular valve stein slidable in the casing and having a conical valve engageableVA with the valve seat, the valve having` a port coinniunicating with the stein interior, a nozzle on the sten'i? a ring threaded in the casing and having its lower end conformably engaging the collar seat` and an outer casing threaded over the sleeve and engaging said bag wall to clainp the latter against the ring base.

3. A valve structure tor rubber bags, including a base engaged with a wall of the bag, a sleeve carried by the base, a valve casing carried by the sleeve and located therewithin and having an internal valve seatj a hollow valve stein slidable in the casing and having a valve `engaged with the seat and formed with a port communicating with the valve stem interior, a spring seat within the casing a spring supported on the seat and engaged with the valve a nozzle on the valve steinl and an outer casing surrounding the sleeve-and engaged with said bag wall to clamp sarne against the base.

a. A valve structure for rubber bags, in-

ycluding a base engaged with a wall of the bag, a sleeve ,carried by the basefa valve easing carried by the sleeve, and located therewithin and having an internal valve seat, a hollow valve stein slidable in the casing and having a valve engaged with the seat and formed with a port communieating with the valve stein interior, a spring seat within the casing, a spring supporte on the seat and engaged with the valve, a nozzle on the valve stein, and an outer casing surrounding the sleeve and engaged with said bag wall to clamp same against the base, said base having a tapered seat and the lower end ot the sleeve and spring seat being each ta )ered to kcontorniably en- C, the base seat.

5. In a valve structure for rubber bags7 a base engaged with a wall ot the bag, a sleeve carried by the base, a valve casing carried by the sleeve and located therewithin7 a spring pressed valve in the casing having a tubular stein, and an outer casing threaded over the sleeve and engaged with said wall of the bag to clamp the latter against the base.

6. ln a valve structure for rubber bags,

a base engaged with a wall of the bag, a

sleeve carried by the base, a valve casing carried by the sleeve and located therewithin, a spring pressed valve in the casing having a tubular stein7 and an outer casing threadel over the sleeve and engaged with said wall of the bag to clalnp the latter' against the base, the base having a tapered seat and the easing having a seat for the spring at its lower end, which spring seat and the lower end of the casing are ea'ch tapered to conloi'inably engage with the base seat.

in testimony whereof l have signed iny naine to this specification.

ROBERT E. STERRITT. 

